Fair Value Measurements - Schedule of Change in Contingent Consideration (Details) $ in Thousands	3 Months Ended
	Jan. 02, 2021 USD ($)
Change In Contingent Consideration [Roll Forward]
Balance, October 3, 2020	$ 31,194
Balance, January 2, 2021	37,655
Level 3
Change In Contingent Consideration [Roll Forward]
Balance, October 3, 2020	26,497
Interest accretion	468
Foreign currency translation	1,166
Balance, January 2, 2021	$ 28,131